US2418637A - Starting and manual propelling system for lifeboats - Google Patents

Description

April 8, 1947.

STARTING AND MANUAL PROPELLING SYSTEM FOR LIFE BOATS v. HARASTY 2 ,418,637

Filed Dec. 7, 1944 H INVENTOR. Vi/(tor Warezsfly ATTORNEY CA Q Patented Apr. 8, 1947 STARTING AND MANUAL PROPELLING SYSTEM FOR LIFEBOATS Viktor Harasty, Whitestone, N. Y.

Application December 7, 1944, Serial No. 567,024

1 Claim.

This invention relates to means for enabling the crew and passengers of a life boat to start its engine, by operating manual levers and mechanism actuated thereby for starting the engine.

. Another object of the invention is to provide a life boat with means for starting the engine, which can also be varied to directly operate the screw propeller in the event that there is no fuel to operate the engine, or in case of service or operational difliculties which cannot be corrected.

With the above and other objects in view the invention consists in certain-new and useful constructions, combinations, and arrangements of parts, clearly described in the following specification, and fully illustrated in the accompanying drawings, in which:

Fig. 1 is a plan view of a life boat.

Fig. 2 is a central vertical. sectional view thereof, on an enlarged scale, and partly broken away for convenience.

Fig. 3 is a detail vertical sectional view through the gear transmission, showing the means for shifting the gears and the drive between the manually operated gear and the engine and propeller shafts.

Fig. 4 is atransverse sectional view thereof.

Fig. 5 is a detail side elevation of an overrunning clutch and drive gear.

Fig. 6 is a vertical sectional view through the overrunning clutch.

Referring to the accompanying drawings, which illustrate the practical embodiment of my invention, 5 designates a life boat, which may be of any type of construction, and which in this example is shown to be provided with a series of seats 5, suitably spaced apart from each other.

This life boat is provided with a screw propeller I, which is operated by a shaft 8, which works in a bearing 9, and extends rearwardly from this bearing into the housing III of the gear transmission set II. The propeller shaft carries a large gear wheel l2 and a small gear wheel l3, connected to each other by the sleeve I4, which is formed with a groove Ma, engaged by the jaws of the spanner yoke l5, which is pivoted on the bearing l6 of the housing l0, and the handle ll of the yoke l5 extends outwardly of the housing HI, through the slot Illa thereof. This yoke lever is thus mounted to swing horizontally to shift the sleeve l4 and the two gear wheels l2 and I3 connected thereto, on the propeller shaft, and these wheels are splined to the propeller shaft so as to rotate therewith.

The large gear wheel 12 is arranged to engage the smaller gear wheel l8, which is keyed to the shaft is, mounted to turn in bearings 20 of the housing III. This shaft carries a larger gear wheel 2!, which is engaged by the small pinion gear 22, on the manual starting shaft '23. This pinion gear 22 may be a gear worm and the en-' gear 24, which engages the larger gear 25 on the, shaft l9, and the two gears l2 and I3 may be shifted to a position intermediate of the gear wheel l8 and the reverse pinion gear 24,v so as to place the whole transmission in neutral, and to cut-out the propeller shaft from driving connection with the shaft 19, when it is desired tostart the engine, indicated at 26.

The shaft of the engine is coupled to one of the members of the clutch 21, through the bearing 28, and the cooperating clutch member is cou-' pled to the shaft IS. The clutch is operated by means of the lever 29, so that the engine may be cut-out from driving engagement with the shaft l9, or connected for driving engagement thereto.

The manual starting shaft 23 is equipped on one end with a disc 30, which is provided with an eccentric drive pin 3|, and this is engaged by the pitman or link 32. The other end of the drive shaft 23 is similarly equipped with a disc 30a, which is provided with an eccentric pin am, engaged by the pitman or link 32a. The pitman or link 32 is pivotally connected to a main operating beam or rod 33, which is pivotally connected to the lower ends of the upright levers 34. Each of these levers is pivotally supported by its pin 35 in a bearing 35, mounted on the floor or planking 31, which forms a structural part of the life boat, the beam or rod 33 being supported well below the floor or planking, but above the bottom 38 of the boat.

Each of the levers is equipped with an upright handle 39, which is rounded for convenience of operation.

The pitman or link 32a is engaged by the beam or red 33a, and this beam is pivotally connected to the lower ends of the levers 34a, and. supported thereby. The levers 34a are pivotally supported by bearings similar to the bearings 36. The eccentric pin 31a of the disc 30a, is disposed in advance of the eccentric pin 3| of the disc 30, so that one of said pins will always be out of dead center position when the other pin is in dead center position.

The manual starting shaft 23 is equipped with an overrunning clutch 4|, which includes the outer cylinder 42, having a cylindrical inner bearing face 42a, and the multiple cam member 43, which works within the cylinder. The cam member 43 is shown to be equipped with three cam faces or inclines 43a and provided with a stop 4312 at the end of each cam face or incline. Each cam face or incline is engaged by a plurality of rollers 44 of three different sizes. The cam member is coupled directly to the eccentric driving disc and the cylinder is coupled to the gear pinion.

When the engine starts as a result of the turning eifort developed by the manual operation of the levers and the horizontal beams or rods, which cause a rotative movement of the starting shaft 23 and its gear pinion 22 and shaft I!) connected to the engine shaft, the cylinder 42 will'start under its own power from the engine and develop a speed of rotation faster than that of the starteccentric pin and the levers will be automati'cally disengaged from the gear pinion.

When the friction clutch 21 is indisengaged position; and the hand levers are operated, the shaft [9 will be rotated. When the gear I2 is engaged, as in Fig. 3, the propeller shaft will be rotated by the turning of the drive shaft 23, through the levers, beams and pitmans. By disengaging the drive gear [2' from the gear l8 of the shaft [9, and engaging the friction clutch 2T, the engine may be started by operating the levers. By placing the transmission gears in reverse driving position and by disengaging the friction clutch, the propeller may be Operated in reverse driving direction. I

My invention provides a life boat with means which will enable a life boat crew or its passengers to manually start a heavy internal combustion engine, whether it be, a spark ignited or a Diesel type of engine, and in the event that the engine has been rendered unfit for operation, or the fuel supply has been lost or is exhausted, to operate the screw propeller in either of its two directions ofr'otat-iom-so as to manually propel the life boat 45 through the sea waters. u

The 'efiect of such additional equipment upon the morale and confidence of the passengers and crew of the life boat would be enormous, as it would immediately establish complete confidence in their ability to navigate the life boat to a position of safety. 7

It is understood that various changes in the details of construction, the arrangement and combination of parts, may be resorted to, within the scope of the claim of this invention.

Having described my invention I claim as new:

A life boat comprising a hull having a propeller shaft mounted for rotation thereon, a screw propeller fastened to the end of said shaft, an internal combustion engine in said hull, driving mechanism including shiftable transmission gears on said propeller shaft and a second shaft having gears for selective meshing with said shiftable transmission gears connecting the engine and propeller shaft, a clutch for controlling engagement, of said second shaft with said engine, a starting pinion having driving engagement with said second shaft, an overrunning clutch having driving connection with said pinion, an eccentric pin having driving connection with the overrunning 'clutch, a pitman pivotally connected with said eccentric pin, a beam pivotally connected with said pi-tman, and a series of manually operable levers pivotally mounted within the hull and having pivotal engagement with 'saidbeam, whereby the engine may be started or the propel-ler shaft may be manually rotated to propel the life boa-t. V V

VIK'IOR; HARAS TY.

REFERENCES CITED 7 The following references are of record in the file of this patent:

UNITED STATES PA ENTS .British July 29, 1938

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